Luc Maisonobe created MATH-1288:
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Summary: Allow ordinary differential equations to use Field
Key: MATH-1288
URL: https://issues.apache.org/jira/browse/MATH-1288
Project: Commons Math
Issue Type: New Feature
Affects Versions: 3.5
Reporter: Luc Maisonobe
Assignee: Luc Maisonobe
Priority: Minor
Fix For: 3.6
Several algorithms in Apache Commons Math already provide one implementation
for primitive double and another implementation for RealField elements. Among
these are linear algebra, solvers and geometry.
It would be fine to also have such a feature for ODE.
A side effect of developing this would be to test a simplified API that could
later be backported to the double[] ode implementation in the 4.X series.
Implementing this is quite simple (but involves numerous classes and
interfaces, since the ode package is large) as it mainly consists in changing
types from double to T (with T the parameter for the class) and replacing the
operations with calls to add, subtract, multiply ...
As an initial step, providing this feature for only a small subset of existing
integrators would be sufficient (typically Dormand-Prince 8(5, 3) would be
needed). More complex integrators like Gragg-Bulirsch-Stoer could be done later
on.
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